HopX vs Sendblue Sandboxes

HopX costs $0.0504 per vCPU-hour and Sendblue Sandboxes costs $0.165 per vCPU-hour. HopX runs Firecracker microVMs and has no session limit. Sendblue Sandboxes runs containers.

Updated Oct 15, 2026

HopX

Firecracker microVM sandboxes for AI agents.

Isolation: Firecracker microVM
Free tier: $200 credit
Max session: No limit

Visit site HopX profile

Sendblue Sandboxes

Isolated cloud Linux machines that AI agents control over an HTTP API.

Isolation: Container
Free tier: $100 free compute, once per phone number
Max session: Not listed

Visit site Sendblue Sandboxes profile

What is different

6 fields differ. The rest are the same or not listed.

Field

HopX

Sendblue Sandboxes

vCPU, per hour: HopX: $0.0504; Sendblue Sandboxes: $0.165
RAM, per GiB-hour: HopX: $0.0162; Sendblue Sandboxes: Included
Free tier: HopX: $200 credit; Sendblue Sandboxes: $100 free compute, once per phone number
Billing: HopX: Per second; Sendblue Sandboxes: Bundled machine time
Isolation: HopX: Firecracker microVM; Sendblue Sandboxes: Container
Pause and resume: HopX:; Sendblue Sandboxes: No

Full comparison

18 fields, at each provider's list price

HopXhopx.ai/pricing

Sendblue Sandboxessendblue.com/sandboxessendblue.com

Pricing

vCPU, per hour: HopX: $0.0504; Sendblue Sandboxes: $0.165
RAM, per GiB-hour: HopX: $0.0162; Sendblue Sandboxes: Included
Storage: HopX: $0.000108 per GiB-hour; Sendblue Sandboxes: Not listed
Free tier: HopX: $200 credit; Sendblue Sandboxes: $100 free compute, once per phone number
Paid plan from: HopX: Pay as you go; Sendblue Sandboxes: Not listed
Billing: HopX: Per second; Sendblue Sandboxes: Bundled machine time

Limits

Max session: HopX: No limit; Sendblue Sandboxes: Not listed
Idle stop: HopX: Not listed; Sendblue Sandboxes: After 10 minutes
Largest sandbox: HopX: Not listed; Sendblue Sandboxes: 2 vCPU · 8 GiB
Concurrent sandboxes: HopX: Not listed; Sendblue Sandboxes: Up to 5

Platform

Isolation: HopX: Firecracker microVM; Sendblue Sandboxes: Container
GPU: HopX: Not listed; Sendblue Sandboxes: Not listed
Snapshots: HopX:; Sendblue Sandboxes: Not listed
Pause and resume: HopX:; Sendblue Sandboxes: No

Developer

SDKs: HopX: Python, JavaScript; Sendblue Sandboxes: Not listed
Integrations: HopX: MCP; Sendblue Sandboxes: Not listed

Trust

License: HopX: Not listed; Sendblue Sandboxes: Not listed
BYOC: HopX: Not listed; Sendblue Sandboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

HopX

Sendblue Sandboxes

1 vCPU · 2 GiB: HopX: $0.083; Sendblue Sandboxes: $0.165
2 vCPU · 4 GiB: HopX: $0.166; Sendblue Sandboxes: $0.330
4 vCPU · 8 GiB: HopX: $0.331; Sendblue Sandboxes: $0.660

Compute only, at list rates.

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Which one fits

Based on the fields above

HopX fits when

You want each sandbox in its own microVM.
You use MCP.
You want the lower list price: $0.166 against $0.330 an hour for 2 vCPU and 4 GiB.
You want the larger free credit: $200 against $100.

More comparisons

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HopX

Sendblue Sandboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

HopX fits when

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